TED-Ed is a spinoff of the popular TED talk series that pairs educational talks with lively animations for younger viewers (though they're honestly great for all ages). Adam gave a TED-Ed talk last year that's a favorite on YouTube. The latest video features astronaut Jerr Carr recounting his training and career at NASA, and how he came to command Skylab 4 as his first space flight. If Skylab 4 sounds familiar, it's also the now infamous 84 day mission where the three stressed astronauts on board staged a mutiny to take an unscheduled day off from work.